R10.823 (Right lower quadrant rebound abdominal tenderness) compared with R10.824 (Left lower quadrant rebound abdominal tenderness), from the official CMS tabular data. R10.823 and R10.824 code the same condition on opposite sides. MedCoder-derived
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. R10.823 and R10.824 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| R10.823Right lower quadrant rebound abdominal tenderness | R10.824Left lower quadrant rebound abdominal tenderness | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | R00-R99 — Symptoms, signs and abnormal clinical and laboratory findings | R00-R99 — Symptoms, signs and abnormal clinical and laboratory findings |
| Definition | Right lower quadrant rebound abdominal tenderness is a billable ICD-10-CM diagnosis code (R10.823). | Left lower quadrant rebound abdominal tenderness is a billable ICD-10-CM diagnosis code (R10.824). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources